San Juan 33S vs San Juan 34
How do the San Juan 33S and San Juan 34 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.
San Juan 33S | San Juan 33S | San Juan 34 | |
|---|---|---|
| Length overall | 33.1 ft10.09 m | 33.8 ft10.30 m |
| Waterline length | 27.8 ft8.47 m | 27.9 ft8.51 m |
| Beam | 8.0 ft2.42 m | 10.9 ft3.33 m |
| Draft | 5.5 ft1.68 m | 5.9 ft1.80 m |
| Displacement | 5,700 lb2,585 kg | 10,500 lb4,763 kg |
| Ballast | 3,500 lb1,588 kg | 4,800 lb2,177 kg |
| Sail area | 464 ft²43.1 m² | 551 ft²51.2 m² |
| SA / Displacement | 23.27 | 18.39 |
| Displacement / Length | 118 | 215 |
| Comfort ratio | 18.9 | 22.6 |
| Capsize screening | 1.78 | 1.99 |
| Hull speed (kn) | 7.1 | 7.1 |
San Juan 33S vs San Juan 34: the short version
- The San Juan 34 is the larger boat at 33.8 ft10.30 m LOA versus 33.1 ft10.09 m for the San Juan 33S.
- The San Juan 34 is heavier, displacing about 84% more, which usually means a steadier but slower-to-accelerate hull.
- On sail area/displacement the San Juan 33S carries the more powerful rig (23.3 vs 18.4), favouring lighter-air performance.
- The San Juan 34 scores higher on the Brewer comfort ratio, suggesting an easier motion in a seaway.
- By the capsize screening formula the San Juan 33S rates better for offshore work (1.78 vs 1.99).
Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.